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Screen Voltage Adjustment; White Balance Adjustment - LG 29FS4ALX Service Manual

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(5) Open angle of the two tab of 6 pole magnet by isogonic
angle and accord with vertical line of Red/Blue and Green.
(6) Maintain as angle of (5) and rotate the tab to accord with
horizontal line. In case of twisted horizontal line,repeat
adjustment of (3) ~ (5) remembering the movement of
Red/Green/Blue color.
(7) Move the DY to best condition of convergence and attach
the CPT to a rubber-chock for fixing DY.

5. Screen voltage adjustment

(1) Receive the PAL or SECAM(NTSC) signal into RF mode
(regardless of channel).
(2) If you press the "ADJ"button in LINE SVC mode(IN-START
button),the LINE SVC mode changes to screen adjustment
mode.
(3) Turn the Screen Volume of FBT to change luminance of
White signal center as shown below.
(4) Press the ADJ button to exit SVC mode.

6. White balance adjustment

NOTE : When adjusting white balance automatically,connect the
adjustment JIG in SVC mode.(When pressing IN-
START,MUTE button on remote control for adjustment
orderly,it is changed to CPU OFF mode and screen is
displayed to "CPU OFF".)
(1) Receive 100% white pattern.
(2) Adjust LOW Light status(4.5FL) of CR(R CUT), CB(B CUT)
at CG(G CUT:75) : 60.
(3) Adjust HIGH Light status(35FL) of WR(R DRIVE), WB(B
DRIVE) at WG(G DRIVE:380) : 450.
(4) Repeat above step (2) and (3) for the best condition each
status of High Light and Low Light.
<Table 1> White Balance Color analyzer
Menu
X
Y
Color Temperature
<Table 2> White Balance Initial Data
Menu
LOW LIGHT
BLO-R(R CUT)
BLO-G(G CUT)
BLO-B(B CUT)
HIGH LIGHT
RG(R DRIVE)
GG(G DRIVE)
BG (B DRIVE)
<Table 3> White Balance Initial Data
1. IC
Name
Maker
VCD IC
EP_ROM
EU
N-EU
288
268
295
273
9000
o
K
13000
o
K
Range
DATA
0 ~ 63
32
0 ~ 63
32
0 ~ 63
FIX
0 ~ 63
32
0 ~ 63
32
0 ~ 63
32
Algorithm
0
0
0
2. White balance IIC Parameter(Address)
Program
Win31_wb
Vcd Slave
Program
Win31_wb TWB
Sub Add
Start Bit
Stop Bit
Offset
Polarity
EP_Rom_S
Speed/ Plus
7. Deflection setting Data Adjustment
7.1 Adjustment preparation
(1) Tune the TV set to receive an Digital pattern(EU05CH).
(2) Deflection setting data adjustment is operate by SVC
communicator.
(3) Enter the deflection mode by selection SERVICE2 key on
SERVICE MENU after enter the adjustment mode by
pressing LINE SVC MODE(IN-START KEY).
(4) Use the CH D ,E key to select adjustment item.
(5) Use the VOL F ,G key to increase/decrease data.
7.2 Adjustment
<Note>
- When adjusting a deflection,adjust N50Hz of PAL signal first and
adjust a deflection data at N60Hz(NTSC), Z60Hz, N50Hz,
W50Hz, Z50Hz.
- After finishing deflection adjustment, press the ENTER
button to enter or exit SVC mode.
(1) H SHIFT
Adjust so that the geometric horizontal center line is in
accord with horizontal center line of CPT.
(2) H PARALLEL
Adjust vertical inclination of screen.
(3) H BOW
After finishing Cushion adjustment, adjust curved rate of
top & bottom corner to be equal.
(4) V LINEAR
Adjust the top & bottom size of inner circle to be equal.
(5) V SCROLL
Adjust so that the geometric vertical center line is in accord
with vertical center line of CPT.
0
TWB
Win31_wb TWB
8A
Eeprom_Slave
B(R)_Amp
B(R)_Cut
Win31_wb TWB
Win31_wb
20
17
5
5
0
0
0
0
1
1
36
33
2
2
Speed
Delay
1
30
A0
G_Amp
G_Cut
TWB
Win31_wb TWB
21
18
5
5
0
0
2
2
0
0
37
34
2
2

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